December weather forecast and climate
São Fiel, Portugal

Weather in December

December, the first month of the winter, in São Fiel, is also a fresh month, with average temperature ranging between min 4.9°C (40.8°F) and max 12.6°C (54.7°F).

Temperature

In December, the average high-temperature is essentially the same as in November - a cool 12.6°C (54.7°F). In December, in São Fiel, the average low-temperature is 4.9°C (40.8°F).

Humidity

In December, the average relative humidity is 79%.

Rainfall

In São Fiel, during December, the rain falls for 10.1 days and regularly aggregates up to 57mm (2.24") of precipitation. Throughout the year, there are 97 rainfall days, and 369mm (14.53") of precipitation is accumulated.

Snowfall

In São Fiel, Portugal, snow does not fall in February through December.

Daylight

December has the shortest days of the year in São Fiel, with an average of 9.4h of daylight.

Sunshine

The average sunshine in São Fiel is 5.6h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in December in São Fiel?

In December, in São Fiel, Portugal, the average high-temperature is 12.6°C (54.7°F), and the average low-temperature is 4.9°C (40.8°F).

What is the average humidity in December in São Fiel?

The average relative humidity in December is 79%.

How many days does it rain in December in São Fiel?

In December, the rain falls for 10.1 days. Throughout December, 57mm (2.24") of precipitation is accumulated.

Does it snow in São Fiel in December?

In São Fiel, Portugal, in December, it doesn't snow. In January, it regularly snows.

When it does not snow in São Fiel?

February through December are months without snowfall in São Fiel.

What is the month with the shortest days in São Fiel?

With an average of 9.4h of daylight, December has the shortest days of the year.

How many hours of daylight does São Fiel have in December?

The average length of the day in December in São Fiel, Portugal, is 9.4h.

How many hours of sunshine does São Fiel have in December?

In December, the average sunshine in São Fiel, Portugal, is 5.6h.

What is the month with the lowest UV index in São Fiel?

With an average maximum UV index of 2, December is the month with the lowest UV index in São Fiel, Portugal.

What is the UV index reading in December in São Fiel?

The average daily maximum UV index in December in São Fiel is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in December
São Fiel, Portugal

Average temperature in December - São Fiel, Portugal
  • Average high temperature in December: 12.6°C

The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (11.6°C).

  • Average low temperature in December: 4.9°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).

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Average pressure in December
São Fiel, Portugal

Average pressure in December - São Fiel, Portugal
  • Average pressure in December: 1023mbar

The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in December
São Fiel, Portugal

Average wind speed in December - São Fiel, Portugal
  • Average wind speed in December: 9.5km/h

The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

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Average humidity in December
São Fiel, Portugal

Average humidity in December - São Fiel, Portugal
  • Average humidity in December: 79%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in December
São Fiel, Portugal

Average rainfall in December - São Fiel, Portugal
  • Average rainfall in December: 57mm

The wettest month (with the highest rainfall) is November (60mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in December
São Fiel, Portugal

Average rainfall days in December - São Fiel, Portugal
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is November (12.3 days).
The month with the least rainy days is August (1.5 days).

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Average snowfall in December
São Fiel, Portugal

Average snowfall in December - São Fiel, Portugal
  • Average snowfall in December: 0mm

The month with the highest snowfall is January (1mm).
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in December
São Fiel, Portugal

Average snowfall days in December - São Fiel, Portugal
  • Average snowfall days in December: 0 days

Months with the highest number of snowfall days are January and March (0.1 days).
Months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in December /
Average sunshine in December
São Fiel, Portugal

Average daylight in December / Average sunshine in December - São Fiel, Portugal
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in December: 5.6h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in December
São Fiel, Portugal

Average sunshine days in December - São Fiel, Portugal
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is April (16.6 days).

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Average UV index in December
São Fiel, Portugal

Average UV index in December - São Fiel, Portugal
  • Average UV index in December: 2

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
São Fiel, Portugal

Average cloud cover in December - São Fiel, Portugal
  • Average cloud cover in December: 38

The month with the most cloud cover is January (Cloud cover 42).
Months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in December
São Fiel, Portugal

Average visibility in December - São Fiel, Portugal
  • Average visibility in December: 9km

Months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).

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